Support

Problem:

The push fingers to feed the stripes into the 2. operation do not work  or do not always work properly and no error message appears.

Possible Causes & Resolutions:

• The stripes must slide flat on the table at all times so that they are correctly detected by the sensors B260 and B261 that trigger the Linmot pusher. See the pictures below where the sensors B260 and B261 are located on the newer and the older slitter type.

• Clean the senors B260 and B261. Metallic dust can lead to malfunctions.

• Check the height of trigger sensors B260 and B261. If they are set too low they can not detect the stripes properly.
• Check the spring load of push fingers. If the spring load is set to high, the stripes can be lifted up if they pass the fingers and this can create detection issues for the trigger sensors B260 and B261. Adjust the spring tension so that the push fingers return reliably to the upper position but with as little pressure as possible.
• Gap between stripes is too low. The push fingers need time to return to the initial position. If the gap between the stripes is too small, the push fingers may not yet be ready to feed the next stripe. Check the value of stripe width on HMI. Is it set correctly?
• Defective trigger sensor or sensor cable B260 and B261.
• Defective linmot controller U26. Check linmot controller for error message. Contact CanMan.

Possible solutions:

• Measure the cutting tolerances of at least one complete sheet:
  Is the diameter within tolerance ?
  Is the height within tolerance ?
  Is the angularity within tolerance ?

• Are there any burrs on diameter / height cut ? If yes, sharpen and reset the knifes first. Adjust the clearance between the knifes acc. manual.
• Are the width of both trims correct (min. 2mm) ?
• Measure the overlap of all Big8 knifes with the respective gauge:
  Target is 0.13 – 0.15 mm
• Make sure that the corners of the stripes are not damaged (before entering into the Big8 unit)
• Check the side centering system before 2nd operation: Is it correctly set ?
• Remove the trim guides, check them for any damages, and re-install them again:
  The gap between guide and top knife shall be around 0.2 mm.
• Make sure all transport rings are in good condition and correct positioned.
• Check the drive system of the Big8 unit:
  Is there any damage on the drive system and is the timing belt well tensioned ?
• Check the upper rubber / lower steel roller system after the Big8 (no direct impact):
  Is there any damage ? Is the gap between both rollers correctly set ?

Problem:

The sheet is lifted by the front sucker bar but then dropped instead of being pushed into table 1. After 3 times slitter stop and error message “SEPARATION: Double sheet counter limit” appears.

Possible Causes & Resolutions:

• Check on the HMI whether the correct sheet thickness values has been set.
• Check whether the sheets are sticking to each other or not. If they do, separate the top ones physically from each other and try again to destack them.
• Check the position / correct function of all separation air nozzles left and right: The top sheets should be visually separated.
• Check the position / correct function of all separation magnets left and right: The top sheets should be visually separated.
• If available switch on the separating air between downstacker and 1. table as well, and reset their height if necessary.
• Check the physical setting height of the double sheet sensor: If the sensor is set too high, he will not be in contact with the sheet, resulting in incorrect measurements.
• Check the cable between double sheet sensor and control. There may be a cable break which influences the measurement result. Replace the cable if needed.

Problem:

Some Beckhoff i/o terminals are not active and status LEDs are off, control does not respond to commands.

Possible Causes & Resolutions:

• The 24Vdc supply of the EK1100 coupler or the EL9410 intermediate supply terminal is missing or the voltage is too low > Check all connections, measure voltage, check fuses.
• Bad contact between the terminals > Switch off the main power and remove the terminals. Clean the contact between the terminals.
• Defective EL9410 intermediate supply terminal > Exchange terminal.
• Defective EK1100 coupler > Exchange coupler.

Problem:

After main switch off and on again, HMI piece counter values and settings are lost or old recipes are loaded.

Possible Causes & Resolutions:

• IPC has not shut down correctly.Check the IPC after you switched off the main switch: Normally it will continue to run for at least 30 seconds to shut down correctly. If LED’s of IPC goes off within a few second, the battery of the UPS – unit is dead and needs to be replaced.

Problem:

Suction cup malfunction.
Vacuum not working, constantly on or constantly blowing air instead of (sucking and then blowing) once only.

Possible Causes & Resolutions:

• Most likely a relay is defective and needs to be replaced.
• Vacuum suction injector is defective and needs to be replaced.

Components:

KA1.2-1.7 Relays

Y108 Vacuum blank feeder back
Y109 Vacuum blank feeder front
Y110 Vacuum 1.Table

Y111 Blow off blank feeder back
Y112 Blow off blank feeder front
Y113 Blow off 1.Table

Spare Part:

003246                        Relay / terminal 1 two – way contact
https://www.canman.ch/shop/shop-search/query/003246/?q=003246&search=Search

010482                        Vacuum suction injector        (Y109/Y112)

010486                        Vacuum suction injector (Y108/Y111, Y110/Y113)

Problem:

Drives start but the slitter does not start cutting in automatic mode. Pockets on sheet collector are full but stacks are not pushed out automatically and the button on the panel for pushing out manually does not work either.

Possible Causes & Resolutions:

• Signal feeder active: Check the signal from feeder. When the feeder pick up the sheet stacks inside collector, the push out of new sheet stacks is blocked.

• Reed switch B267 blank collector closed: If the blank collector is not closed, the function push out sheet stacks does not start. Check reed switch B267.

• Light barrier B266 sheet stack in pick-up position: If this light barrier is damaged or not adjusted well, the function push out sheet stacks does not start.

• Wrong setup for blank collector: If wrong type of blank collector is selected, push out of sheet stacks is disabled.

Problem:

The HMI cannot be started and the browser shows „NOT FOUND, The requested URL /en/default.htm was not found on this server“.

Possible Causes & Resolutions:

Not connected to Canman Wifi (only for wireless connected iPad’s): Check the wifi settings. Choose Canman wifi and try again.

IPC has not shut down correctly: In this case probably the HMI software can’t start up automatically by restarting the machine.

Check the IPC after you switched off the main switch: Normally it will continue to run for at least 30 seconds to shut down correctly. If LED’s of IPC goes off within a few second, the battery of the UPS – unit is dead and needs to be replaced.  Contact Canman for online support to restart HMI.

Problem:

First operation feeds the stripes too early into the upper magnetic belt of 2. table. Therefore the stripes do not stop on the upper magnetic belt and will be ejected through the slot in the frame of the 2. table.

Possible Causes & Resolutions:

Sensor B255: This sensor sends a signal to the control that the upper magnetic belt is ready for new stripes. The sensor might be defect or wrong adjusted.

Sensors B237 and B238: Sensor B237 does slow down the sheets and B238 stops the sheets for the centering. If the sheets do not stop, they may run through the first operation without being centered and with incorrect timing. The sensors might be defect or wrong adjusted.

Problem:

Everything looks fine but the drives do not start if the green button “Production On” is pressed.

Possible Causes & Resolutions:

The main power supply 72 VDC of the Linmot controller is missing:

Check the power supply G5 inside the control panel on the second table (see attached picture). Most probably the 15 Amp. fuse is melted. Replace the broken fuse with a new one.

Problem:

Error message „Magnet belt not down” displayed on HMI (magnet belt does only exist on the 2. table on a duplex slitter), and arrow buttons „Up” and „Down” for magnet belt are not visible anymore.

Possible Causes & Resolutions: 

Arrow buttons magnet belt up may be visible for a short time and pushed during start up of panel.
Delete of error message:

1. Login with canman user => Contact CANMAN for password
2. Go to Setup
3. Change the function Single slitter to OFF (See attached picture)
4. Go back to main screen. Now the up and down button for magnet belt will be visible.
5. Push and hold the arrow button down for magnet belt until the error message “Magnet belt not down“ disappears.
6. Go back to the canman settings and set the function “Single slitter” back to ON.

Excel Spreadsheet – CM Electrical Components List

Problem:

• Speed of the drives changes during production

Possible causes & resolutions:

• Wrong position of the switch for the terminating resistor on the bus plug.
  Check all switches on the complete bus system. Follow the cable thoroughly from first DP bus device (PLC) to last DP bus device. The terminating resistor switch of first and last must be set to „ON”, all other to „OFF“.
• Bus connector/plug defect
• Check wiring of all profibus cables, especially the connection of the cable shield inside the plug.
• Problem of terminating resistor supply by last device on bus. Try to change the profibus wiring to use on another device as last client.

Problem:
Display shows „Could not activate iPad“

Possible causes & resolutions:

• No internet connection > Check network connection of machine.
• Firewall blocks connection to iPad > Try to connect the iPad to other Wifi without firewall, for example hot spot of mobile phone.
• Try to make a reset by holding down the home and power button simultaneously for a few seconds until the Apple logo appears. Don’t worry, the iPad doesn’t have any data inside, it only displays the values from the browser. Can Man does not use an Apple ID to activate the iPad’s, so the iPad is resettable.
• iPad might be defective > We will offer new one or you organize it locally.

For connecting an alternative display / PC, please have a look at the separate FAQ.

Problem:

iPad does not connect to the machine. Screen remains gray and shows no values.

Possible Causes & Resolutions:

• Connection via Wi-Fi
  • In the settings, check whether the iPad has connected to the correct Can Man Wi-Fi
  • If no Can Man Wi-Fi is visible, check router/wireless access point.
    ➔ Restart router/wireless access point. If still no Can Man Wi-Fi is visible, the router/wireless access point has lost the settings or is broken. Contact Can Man via by opening a new ticket.
• Connection via Cable
  • Check all plug connections of the network cable between IPC and iPad
  • Check iPad adapter power supply. The adapter must always be powered, otherwise the connection will not work.

Battery of IPC is empty when:

• System Date and Time (Error Log) not correctly displayed and getting lost when powering off the IPC.

To Do:

• Replace IPC battery with Lithium Battery Type CR 2032
• Replace battery according to the Beckhoff Instruction (Access to Battery)

Download PDF here

Note the adjustment of the clearance of the roller after the BIG8 monobloc cutting heads is ELEMENTARY to prevent bow cuts!

Check if the roller is not “tilted” (and thus one-sided “in the air”), refer also to manual of your slitter how to adjust the roller.

An overvoltage suppressor (or surge suppressor) is an appliance designed to protect electrical devices from voltage spikes. A surge suppressor attempts to regulate the voltage supplied to an electric device by either blocking or by shorting to ground voltages above a safe threshold.

These surge suppressors are built in to the latest Pacemaker models and machine controls (from 2009).

Check, if one or more modules of the surge suppressors are red/defect. Replace the red modules.

Attention!!!

Do not bridge the signalling contacts and run the machine with defective red modules because they no longer protect the system from voltage peaks!!!
If the modules are defective, check the main supply. Measure and check all voltages between the phases and all phases to earth before exchange the modules and restart the machine.

Possible causes:

• If your Big 8 slitter does have only one long magnetic rod-sensor, Big 8 cutting heads shall not touch each other, because the magnetic positioning rings (sitting around magnetic rod-sensor and mounted in each Big 8 unit), could interfear each other.
• The amount of Big 8 units must always be equal with the amount of Big 8 icons shown on the display.

Possible causes:

• No supply of a slave on the bus system.
  • Check supply of all slaves.
    Emergency stop must be released.
• Address of slave on Profibus is wrongly adjusted.
  • Check setting of all DIP switches on the Lenze bus module and on the Linmot controller.
    You can find the correct setting on the wiring diagram.
• Wrong position of the switch for end resistant on the bus plug.
  • Check all switches on the complete bus system. Seriously follow the cable from PLC to the last slave. First plug and plug of last slave must be set to ON, all other plugs to OFF.

Check function of the reed sensors B256, B257, B258 and B259.

You can find them on the cylinders of the magnetic conveyor (Y125) and transport roll (Y124). Manually activate the two cylinders on the valve block and adjust the reed sensors if necessary.

Refer also to the pneumatic diagram here.

Possible causes:

• Responsible for having all stripes correctly aligned after first operation, are both rubber shafts.
• Each rubber shaft has a left and right support, and each support is under pressure by a pressure spring.
• If the setting of the springs is not correct, some stripes may stop earlier or later than other stripes:
  • Increase or reduce the tension on the springs, till you get a satisfying result.

• If this still does not solve the problem, a complete resetting of both rubber shafts is necessary:
  • Reduce the tension of all four screws completely.
  • Release the air pressure by switching off the main air supply.
  • Both rubber shafts have to touch the lower rollers completely.
  • If, for instance, the left side of one rubber shaft does not touch the lower roller, do the following:
    • Slightly undo the M8 of the main support, till the rubber shaft goes down automatically, then lock the screw again.
  • Start to tighten the pin screw (for spring pressure tension) till each screw does touch the spring.
  • Turn every pin screw between 2-3 revolution, but all the same!
  • When you move the piston rod of the pneumatic cylinder completely in by hand, the rubber rollers must of course touch the lower roller, and you must see the springs get compressed further.
  • Switch the main air pressure supply back on.

Possible cause:

• The reed sensor B233 on the vertical cylinder rear/right corner is not correctly adjusted.
  • when piston of cylinder remains in bottom position (due to blank magazine clearing process), the reed switch must be active

Possible causes:

• make sure that the inner core and the suction cup are on the same level (picture 1).
• make sure that the suction unit in the upper (active) position is on the sheet metal level (picture 2)

Find a complete error list together with the interpretation of the error codes

Download PDF here

Possible causes:

• Since the slider of the linear motor contains strong magnets, remove dust or small particles from slider with a disposable paper.
• LED state shown by the yellow LED on the controller or check the hand panel
  • “Sensors / Actors 3/4”
• Motor resistant according Linmot manual
• Cable according Linmot manual

Possible causes:

• wrong cutter setting
• cutters are blunt
  • grind your cutters
• watch the sucker unit in front of the 1. cutting operation for too much downwards-bow of the sheet
  • adjust bottom stop
  • replace worn out sucker or parts
  • mount the full range of downholder rings – see picture below!
  • they prevent the bowing movement of the sheets

NOTE: The SQM measuring device can only detect “angular” cutting errors!

Possible cause:

• wrong position of a reed sensor
  • check all reed sensors
  • use the help of the display – which shows the status of the sensors
  • consult the timing diagram of the PowerCUT – download here.

• Check the squareness of a couple sheets: From corner to opposite corner, as well as opposite corner distance. Compare both measures: The difference should be < 1 mm.

• Make sure that the lateral position of the sheet stack is correct: Correct the stack position by the handle, until the sheet does < 2 mm lateral movement till the final position before 1. cutting operation.

• Measure the sheet flow height on the first table: 0.5 mm below cutting level.

• Stop 1 sheet before the 1. operation – with centering rollers closed – and check the pressure on the spring roller: Too much load on the spring can damage the sheet.

• The speed of the first cutters (measure on the carbide knife) must be a around 1 m/min less compared to the speed of the driven conveyor belt.

• Make sure that both trim-guides (after 1. operation) do have a space of 0.5 mm to the stripe edge!

• Measure the burrs of all stripes, if necessary grind the knifes!

• Make sure that one pair of knifes is mounted reversely (helps to guide trim downwards, helps to avoid bow cut).

• Measure the concentricity of all transport rings, exchange damaged transport rings!

• Fill-up too big space(s) between the cutters with white guide-rings ! This helps especially for thin sheets and for higher developments. Measure the gap between each guide-rings with feeler-gauge 0.50 mm.

• Regulate the position of the centering system by the hand wheel, till both trims measure the correct width.

• Measure parallelism of all stripes after 1. operation: Target < 0.05 mm!

• Set the sensors between both overhead conveyors (after 1. operation) correctly: Laterally, the stripes should not move more than 2 mm after being centered by the 2. centering device! In new slitter with Beckhoff control system, the sensor is fixed and cannot be adjusted. The positioning of sheet is calculated by entering the format.

• Measure the stripe flow height on the second table: 0.5 mm below cutting level!

• Measure the blank flow height after the 2. operation: 1 – 2 mm below cutting level!

• Make sure that enough magnets are mounted in the area before the 2. operation, and that the magnets are mounted at the correct positions. Attention: Too much magnet force will cancel the centering device function!

• Reset the postion of the Linmot infeed device according to manual.

• Reset the position of the Linmot centering device according to manual.

• Position 1 stripe before the 2. operation – with centering rollers closed – and check the pressure on the spring roller: Too much load on the spring can damage the stripe!
• Check the spring tension of the push finger on the second operation. Maybe it is to low and the push finger does not go back to the right position after moving back to feed the next stripe.
• Check the mechanical condition of the push finger. Maybe it is worn out and have to much backlash.
• The acceleration belt for the second operation must be tensioned. Attention!! If spanner is readjusted, the thread bolt can touch the knives. We recommend to chop the thread bolt or take out the spanner and remove the thread bolt! (related for PowerCUT manufactured before 02.2015.)

• The speed of the Linmot infeed system during transfer into 2. operation must be correct > cannot be measured.

• The speed of the second cutters (measure on the carbide knife) must be a around 1 m/min less compared with to the speed of the driven conveyor belt (only if lift-table is in use).

• Measure the burrs of all stripes, if necessary grind the knives!

• Measure the concentricity of all transport rings, exchange damaged transport rings!

• Make sure that the grooves of all Big8 z-bars are clean!

• Fill-up too big space between the cutters with white guide-rings! Measure the gap between each guide-rings with feeler-gauge 0.50 mm.

• Use the SQM measuring device to measure the angular errors of each stripe!

Setting gauge for blank magazine

The setting gauge allows faster adjustment of the blank magazine. This file can be used as a template for individual manufacturing according to specific formats.

To remove the used cutting blades, two spherical clamp screws M6 (8) have to be loosened. The steps for the fitting of the fixing plate (4), which is part of the standard tools delivered with every slitter, are:

1. Remove the plastic plate cover, 4 screws M5.
2. Turn the cutter shaft (7) which is fitted to the drive motor (1) with the special tool (3) until the blade (2) is in the horizontal cutting position.
3. Secure the direct driven cutter shaft (7) in this position with a fixing plate (4) against twisting. The fitting of the fixing plate (4) is done with 2 M5 screws which were used on the plastic plate cover.
4. Release the clamp nut (6) of the not driven cutter shaft (9) with the special tool (3) and the point opening socket wrench (5).
   Use the same wrench (5) on the clamp nut (6) beside the drive motor (1). Turn clockwise = to grip
   Turn counterclockwise = to release
5. Turn the released cutter shaft (9) until the blades are nearly closed together. Place a small piece of 0,02 mm tape between the blades. Turn the cutter shaft (9) until the tape is tied between the blades.
6. In this position, the clamp nut (6) of the cutter shaft (9) should be tied up with the special tool (3) and the point opening socket wrench (5).
7. Take away the tape and check that the cutter blades do not touch each other. Turn with the special tool (3), in the correct direction, with the motor driven cutter shaft (7). The ahead running blades should be in this cutter shaft.

Important
During the assembly of the new cutter blades (2) check that the ahead running blade is on the motor driven cutter shaft (7). See picture no. 3

Nobody should start the unit during the set up. The emergency button should be pressed down, the key-operated switch taken away from the slitter.

Non-compliance of this instruction will cause cutter blade damage or blocking of shafts.

Possible causes:

• the preselect counter is activated but a value is missing
• the blank collector is full
• if connected to a line control, it may have triggered a line stop